SKILL.md
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If it exists: Read the file. Note the user's platforms, goals, voice, and audience. Skip discovery questions already answered.
If it does not exist: Say — "I don't have your social media context yet. Run the social-media-context-sms skill first for best results. Or tell me which platforms you're using and what you're trying to achieve, and I'll give you tactical guidance now."
Step 2 — Identify the focus
Determine what the user needs:
- Tactics for a specific platform (deep dive)
- Cross-posting guidance (adapting across platforms)
- Platform selection (which platform to prioritize)
- Algorithm troubleshooting (why reach is down or engagement is low)
Ask if unclear. Then deliver the relevant section(s) below.
Platform Tactics
Algorithm signals (ranked by impact):
- Dwell time — the algorithm measures how long people pause on your post; long posts with clear value encourage this
- Comments — weighted more than likes; replies to your own comments count and extend the engagement window
- Early engagement — the first 60–90 minutes are critical; a slow start suppresses distribution
- Saves — signal high-value content; prompt saves with "save this for later" CTAs
Post length:
- Feed posts: 1,200–1,500 characters is the sweet spot — enough to deliver value, short enough to show "see more" which increases dwell time
- Never post a wall of text; break every 1–2 sentences with a line break
- The first line must stop the scroll — treat it like a subject line
Formatting rules:
- Short paragraphs (1–2 lines max)
- No links in the post body — LinkedIn suppresses reach on posts with external links; put links in the first comment
- Use bold sparingly for emphasis (via third-party formatters if needed)
- Numbered or bulleted lists perform well for how-to content
Best content types:
Format
Why It Works
Personal story with a lesson
High emotional resonance, high comment rate
Industry take / hot opinion
Drives replies and quote engagement
How-to / tactical breakdown
High saves and shares
Carousel (PDF)
High dwell time, shareable, algorithm-favored
Behind-the-scenes
Builds trust, lower competition
Posting times: Tuesday–Thursday, 7–9 AM or 12–1 PM in the audience's timezone.
Example LinkedIn post structure:
I spent 3 years hiring the wrong way.
The mistake was simple: I optimized for skills, not judgment.
Here's what changed when I flipped that:
→ Time-to-hire dropped 40%
→ First-year retention went from 60% to 91%
→ My best hire came from an industry I'd never considered
The lesson: skills can be taught. Judgment can't.
What's your #1 hiring filter? Drop it below.
#hiring #leadership #startups
Hashtag strategy: Use 3–5 relevant hashtags at the end of the post. Do not stuff. Choose one broad (#marketing), one niche (#b2bmarketing), one optional trending tag.
Engagement patterns:
- Comment on 5–10 posts in your niche before and after posting — triggers reciprocity and expands your network's reach
- Reply to every comment on your posts within the first 2 hours
- Ask a direct question at the end of every post to prompt comments
Twitter/X
Algorithm signals (ranked by impact):
- Replies — the strongest engagement signal; content that sparks conversation gets amplified
- Quote tweets — extend reach into new networks
- Bookmarks — signal high-value content to the algorithm; strong for educational threads
- Likes — still matter but weighted lower than replies
Thread vs. single tweet:
- Single tweet (< 280 chars): best for hot takes, jokes, reactions, and one-liners — higher reach ceiling
- Thread: best for breakdowns, how-tos, and storytelling — high bookmarks, good for authority building; hook tweet must stand alone and drive clicks to expand
Formatting rules:
- The hook tweet determines whether the thread gets read — write it last, after you know the full content
- Each tweet in a thread should end with a reason to click next (cliffhanger, numbered promise, or "but here's the catch:")
- Avoid putting the thread number in tweet 1 ("1/12") — it signals the content is long and reduces engagement on the hook
Hashtag usage: 0–2 hashtags maximum. On Twitter/X, hashtags rarely boost reach and look spammy. Reserve for live events or trending topics only.
Engagement windows: The first 30 minutes after posting are critical. Post when your audience is online; schedule replies to your own tweets to extend the window.
Example Twitter/X thread hook:
Most product managers hire for skills.
The best ones hire for judgment.
Big difference. Here's why: 🧵
Community building:
- Be a "reply guy" — thoughtful replies to larger accounts in your niche expose you to their audience
- Build mutual engagement loops with 5–10 peers: like, reply, and quote each other's content
- Quote tweet > retweet when you have something to add; adds your voice and extends reach
Threads
Platform culture:
- Threads rewards conversational, unpolished, human content — the tone is closer to a group chat than a broadcast
- Performative or overly polished LinkedIn-style content underperforms here
- Humor, vulnerability, and genuine reactions work better than authority-signaling
Cross-posting from Twitter: Do not copy-paste Twitter threads to Threads. The format, tone, and culture are different. Adapt:
- Remove Twitter-specific conventions (thread numbers, "RT if you agree")
- Make the tone warmer and more casual
- Shorter posts often outperform threads here
Engagement patterns:
- Reply culture is strong — Threads users expect the author to show up in comments
- Asking genuine questions (not just engagement-bait) drives good conversation
- Tagging people you mention is more effective than on other platforms
Hashtag behavior: Hashtags are functional on Threads but not as culturally embedded as Instagram. Use 1–3 relevant tags — more for discoverability than community.
Discovery mechanics: Threads surfaces content to non-followers based on engagement signals and topic relevance. Posts that get early replies from accounts outside your followers get boosted.
Instagram integration: Your Instagram audience can follow you on Threads automatically. Leverage this if you have an existing Instagram presence — cross-promote thoughtfully.
Bluesky
Platform nuances:
- Bluesky is decentralized and early-adopter-heavy — the culture values authenticity, anti-corporate tone, and genuine expertise
- Overt promotion is met with skepticism; lead with value and personality
- The community skews toward tech, journalism, academia, and politics — tailor content accordingly
Custom feeds:
- Bluesky's custom feeds are algorithmically curated by third parties — getting into a relevant feed dramatically expands reach
- Research feeds in your niche (e.g., "Science," "Tech," topical feeds) and post content that matches their curation criteria
- Use relevant keywords in your posts, not just hashtags — many feeds are keyword-driven
Starter packs:
- Starter packs are curated follow lists — being included in a relevant starter pack is one of the fastest ways to grow
- Build relationships with active community members who create starter packs in your niche
- Consider creating your own starter pack of people worth following in your field — it builds goodwill and visibility
Community dynamics:
- The reply culture is active and substantive — users engage with ideas, not just react to headlines
- Long-form replies and genuine debate are rewarded
- Avoid self-promotional content in your first 20–30 posts on a new account; establish your voice first
Content discoverability:
- Posts with specific keywords, not vague language, surface better in feeds and search
- Images and links are supported but text-first posts often get more engagement
- Consistency matters more than frequency; 1–2 quality posts per day outperforms 10 low-effort ones
Cross-Posting Guidance
What to cross-post vs. what to make native
Content Type
Cross-Post?
Notes
Major announcement
Yes — adapt each
Adjust tone and format per platform
Personal story
Yes — adapt each
Remove platform-specific references
Hot take / opinion
Partial — adapt heavily
Tone varies dramatically across platforms
Platform-specific format (carousel, thread)
No
Native formats do not translate
Humor / casual reaction
No
Humor reads differently on each platform
How-to / educational
Yes — adapt length
Shorten for Twitter; expand for LinkedIn
Adaptation checklist per platform
Before cross-posting, run through this for each destination:
LinkedIn:
- Length is 1,200–1,500 chars
- Line breaks every 1–2 sentences
- Link moved to first comment
- Ends with a question
- 3–5 hashtags added
Twitter/X:
- Fits in 280 chars OR broken into a proper thread
- Hook tweet stands alone
- Hashtags reduced to 0–2
- Tone is punchy and direct
- CTA removed or made implicit
Threads:
- Tone is casual and conversational
- Twitter-specific conventions removed
- Shortened if originally a long-form post
- Ends with a genuine question or observation
Bluesky:
- Corporate/promotional language removed
- Relevant keywords included for feed discoverability
- Tone is authentic and direct
- Hashtags used contextually (1–3)
Common cross-posting mistakes
- Copy-pasting without adapting tone — a LinkedIn post sounds robotic on Threads
- Leaving external links in LinkedIn post bodies — always move to first comment
- Using Twitter thread format on other platforms — numbered tweets look odd elsewhere
- Posting at the same time on all platforms — audiences are active at different times
- Assuming the same CTA works everywhere — "follow me on LinkedIn" sounds off on Bluesky
Platform Selection Framework
Decision matrix: Goal → Best Platform
Primary Goal
Best Platform
Secondary Platform
B2B lead generation
Twitter/X
Thought leadership / career
Bluesky
Community building
Threads
Bluesky
Audience growth (general)
Twitter/X
Threads
Tech / niche credibility
Bluesky
Twitter/X
Brand awareness (broad)
Twitter/X
Personal brand (casual)
Threads
Twitter/X
When to add a new platform vs. double down
Add a new platform when:
- You've hit a growth plateau on your primary platform
- Your target audience is demonstrably more active elsewhere
- You have a content format that maps naturally to the new platform (e.g., visual content → Instagram)
- You can adapt existing content without a major time increase
Double down on existing when:
- You're posting inconsistently on your current platform
- Engagement is growing but slowly — consistency compounds
- Adding a new platform would split your attention below a sustainable threshold
- Your audience is clearly concentrated on one platform
Rule of thumb: Master one platform before adding a second. Two platforms done well beat four done poorly.
Example platform selection output:
Recommended primary: LinkedIn
Reason: Your goal is B2B lead generation and your audience (VP-level buyers)
is most active on LinkedIn. Your storytelling voice maps well to LinkedIn's
algorithm signals (dwell time, comments).
Recommended secondary: Twitter/X
Reason: Reach amplification — use threads to drive awareness, then convert
on LinkedIn. Post 3x/week on LinkedIn, 5x/week on X.
Tone Adaptation
Same voice, different register. Use your authentic perspective everywhere — adjust the delivery.
Platform
Register
Example (same idea)
Professional, insight-driven
"After 10 years in product, here's the hiring mistake I see most often — and how to avoid it."
Twitter/X
Direct, punchy
"Most product managers hire for skills. The best ones hire for judgment. Big difference."
Threads
Casual, conversational
"hot take: hiring for 'culture fit' is usually just hiring for comfort. tell me I'm wrong"
Bluesky
Authentic, slightly irreverent
"The 'culture fit' hiring myth keeps teams homogeneous and calls it intentional. We can do better."
Platform Quick Reference
Platform
Best For
Frequency
Key Format
Char Limit
B2B, thought leadership, career
3–5x/week
Long post, carousel
~3,000 (feed ~1,500)
Twitter/X
Reach, hot takes, community
5–10x/week
Single tweet, thread
280 per tweet
Threads
Casual community, conversation
3–7x/week
Short post, reply
500
Bluesky
Niche credibility, early adopters
1–3x/day
Text post, thread
300
Boundaries
- Does not write posts, threads, or carousels — see post-writer-sms, thread-writer-sms, or carousel-writer-sms for content creation
- Does not define overall content strategy or pillars — see content-strategy-sms for strategic planning
- Does not analyze post performance or metrics — see performance-analyzer-sms for analytics
- Does not schedule or plan a content calendar — see content-calendar-sms for posting schedules
- Does not execute code or access external APIs unless BlackTwist MCP is connected
- Does not cover Instagram, TikTok, or YouTube — focuses on LinkedIn, Twitter/X, Threads, and Bluesky only
See also
social-media-context-sms — establishes the foundational profile this skill reads from
content-strategy-sms — defines what to post and why across platforms
post-writer-sms — writes platform-native posts from your strategy